Question about Bernina Sewing Machines

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The upper thread is constantly breaking. Don't know how to fix it. Any suggestions?

(Since I have a L-print problem with my 440 QE I started using my Bernina 1030 and have now problems with both.

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  • Expert
  • 266 Answers

Check the tension for upper thread and bobbin(tiny screw to turn anticlockwise to give less tension)

Posted on Nov 19, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Bernina 440 QEE embroidery

I'm not an expert, but maybe your bobbin is wound incorrectly, or not put in the bobbin case properly?  Hope it is something as simple as this.  Good luck!

Posted on Dec 25, 2007

  • 1 Answer

SOURCE: Driver for the Bernina Aurora 440 QE

Buy a new installation CD!!!

Posted on Nov 13, 2008

Storma
  • 1 Answer

SOURCE: Upper Thread Breaks!!!

Hi, here are some reasons why the thread is breaking :-)

  • Threading is not correct.
  • Thread has a knot in it.
  • Thread tension is too tight.
  • Needle is bent or blunt or has a sharp eye.
  • Needle is wrong size.
  • Needle has been inserted wrong.
  • Needle and thread does not match.
  • Starting to stitch too fast.
  • Thread take-up lever has not been threaded.

  • Hope this helps.

    Posted on Jan 14, 2009

    WonderTech
    • 268 Answers

    SOURCE: I have an old Bernina - an 810 - and the upper

    Hello,
    Here are several solutions to try. I realize you have tried some of these but it may be worth a second try.

    * Re-thread your machine, an incorrectly threaded machine can cause thread to break.

    * Decrease the tension on your machine. The tension may be too tight for your thread.

    * Reposition the spool of thread on the spindle. You know that little nick in the edge of a spool that’s used to hold the loose end of the thread? Your thread may be catching on this nick as you sew. Place your spool so that this nick rests against the bottom of the spindle.

    * Reinsert your needle and make sure it goes all the way into the holder and that it’s positioned correctly, usually with the flat side away from the bobbin, but consult your machine’s manual to be sure.

    * Change your needle.Your needle may be bent or dull. The eye of your needle may have a nick in it that’s cutting the thread as you sew. Or your needle may be too small for the thread you’re using, in which case, change to a larger needle. And make sure your needle is appropriate for the weight and type of your fabric.

    * Change your thread
    Your thread may be weak. Or your thread may be fuzzy and irregular, causing it to catch in the
    eye of your needle as you sew. Cheap thread tends to be weak and fuzzy, so make sure to
    use a quality, brand name thread. And if you’ve been sewing with an older cotton thread, which
    can dry out and become brittle with age, try a newer thread.

    * Check your presser foot for damage to the needle hole
    A burr in your presser foot’s needle hole may be cutting your thread. Gently smooth any rough
    spot you find with an emery cloth.

    * There may be a burr in one of your thread guides, in which case, you may need to have your
    machine professionally serviced to have the part replaced.

    I hope this helps.

    Posted on Dec 30, 2009

    • 28 Answers

    SOURCE: when stitching the design the upper thread keeps

    The tension is not properly set for embroidery, try to rethread totally new. Sometimes it is also caused by broken thread inside the machine, you can open it with the supplied L-shaped tool on the left side of the machine where the lamp is located and than take it out with a tweezer.

    Posted on Apr 11, 2010

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    1. the needle thread is not threaded properly
    2. The needle thread tension is to tight
    3. The needle is bent or blunt
    4. The needle is incorrectly inserted
    5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
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    How to fix new home machine it model No.731016401. model 360 manufactured by Janome its not sewing cloths. The thread is placed properly but when i try sewing it starts to break the thread. it turns in...


    Upper thread breaks
    1.needle may be in backwards
    Correct needle insertion
    Correct needle insertion is mandatory for proper use of sewing machine.
    Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine or if using a round needle--the groove in the needle should face away from the shaft.
    Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
    2.upper tension may be to tight--try 3 to 5
    3.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
    4.thread may be hanging up in bobbin case--check area for loose threads or lint
    ???
    Lower thread breaks
    The most probable cause of lower thread breaking is improperly wound bobbin
    1.always start with a empty bobbin
    Never wind one color over the other
    2.choose thread that is identical in color & type as the one to be used for upper threading
    3.wind the bobbin evenly across & in layers
    4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
    5.bent bobbin--replace
    6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
    7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin

    also check the thread take up lever to make sure the thread has not come off of it cause that can make the machine jam up also

    Sep 20, 2011 | Sewing Machines

    1 Answer

    The thread keeps breaking. Could the AUTO tensioner be the problem ?


    here are some suggestions, hope they help
    Upper thread breaks
    1.needle may be in backwards
    Correct needle insertion
    Correct needle insertion is mandatory for proper use of sewing machine.
    Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine or if using a round needle--the groove in the needle should face away from the shaft.
    Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
    2.upper tension may be to tight--try 3 to 5
    3.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
    4.thread may be hanging up in bobbin case--check area for loose threads or lint
    ???
    Lower thread breaks
    The most probable cause of lower thread breaking is improperly wound bobbin
    1.always start with a empty bobbin
    Never wind one color over the other
    2.choose thread that is identical in color & type as the one to be used for upper threading
    3.wind the bobbin evenly across & in layers
    4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
    5.bent bobbin--replace
    6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
    7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin .

    Sep 18, 2011 | Baby Lock Ellure

    2 Answers

    Thread breaking, not even threaded in needle anymore, thread gets caught on spool sometimes


    Upper thread breaks
    1.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
    Or the needle could be in backwards
    Correct needle insertion
    Correct needle insertion is mandatory for proper use of sewing machine.
    Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine or if using a round needle--the groove in the needle should face away from the shaft.
    Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
    2.upper tension may be to tight--try 3 to 5
    3.thread may be hanging up in bobbin case--check area for loose threads or lint
    ???
    Lower thread breaks
    The most probable cause of lower thread breaking is improperly wound bobbin
    1.always start with a empty bobbin
    Never wind one color over the other
    2.choose thread that is identical in color & type as the one to be used for upper threading
    3.wind the bobbin evenly across & in layers
    4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
    5.bent bobbin--replace
    6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
    7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin

    for the top & bobbin thread keep thread tails of 3 to 6 inches long pulled behind the needle before you start sewing

    yes,sometimes the thread will get caught on the spool, you might think about getting a extra holder that sets behind the machine to hold those spool's that the thread get caught on, that's what I did.

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    I have a bernina overlocker and whenever I use it the lower looper (marked in red) thread breaks. How can I fix this? It was serviced yesterday and when other people used it before me it worked fine!


    Then it's one of two things. First try setting your lower looper tension on 3 and see if that works. If not set it back on 4 and cut ALL your threads and re-thread the machine STARTING with the UPPER looper, then the lower looper, then the right needle, last the left needle if you're sewing a 4 thread overlock stitch. Make sure the threads aren't twisted in the thread guide. Make sure the lower looper thread is OVER the elbow on the upper looper and over the upper looper thread. Let me know if this works. We'll work until we get it fixed!

    Sep 14, 2010 | Sewing Machines

    1 Answer

    QE 440 BSR sewing along fine then skips 2-3 stitches, bobbin seems to not catch the stitch.


    Hello,
    Here are a few things to try.

    * Re-thread your needle
    It may be threaded incorrectly (backwards).

    * Reinsert your needle
    Make sure it goes all the way into the holder and that it’s positioned correctly – usually with the flat side away from the bobbin, but consult your machine’s manual to be sure.

    * Change your needle
    Your needle may be blunt, bent, or otherwise damaged.

    * Your fabric may require a different needle. Generally, heavier fabrics require larger needles and thinner fabrics, smaller needles. You may also need a larger needle if you’re sewing through many layers of fabric. And make sure to use a ballpoint needle for knit fabrics and a sharp needle for wovens or a universal needle for either. Make sure your needle is appropriate for the type of thread you’re using.

    * Adjust the pressure of your pressure foot
    It may be too light for your fabric.

    * Change your thread
    If your upper thread and bobbin threads are different types, try using the same thread for
    both. And use a good quality, brand name thread.

    * Adjust your thread tension
    It may be too tight or too loose.

    * Re-thread your machine
    It may be threaded incorrectly.

    * Change your needle plate
    Try switching to a needle plate with a smaller hole (a straight stitch needle plate).

    Important Note:
    After changing your needle plate, check to make sure your needle aligns perfectly with this smaller hole before starting to sew. A misaligned needle could hit the plate and break, which
    could be dangerous. And make sure to change your needle plate back for zigzag and other wide stitches.

    I hope this helps.


    Sep 09, 2009 | Bernina Sewing Machines

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